re·​hy·​drate | \ (ˌ)rē-ˈhī-ˌdrāt How to pronounce rehydrate (audio) \
rehydrated; rehydrating; rehydrates

Definition of rehydrate

transitive verb

: to restore fluid to (something dehydrated)

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Other Words from rehydrate

rehydratable \ (ˌ)rē-​ˈhī-​ˌdrā-​tə-​bəl How to pronounce rehydrate (audio) \ adjective
rehydration \ ˌrē-​ˌhī-​ˈdrā-​shən How to pronounce rehydrate (audio) \ noun

Examples of rehydrate in a Sentence

Recent Examples on the Web Knowing sweat rates allows an athlete to properly rehydrate to prepare for the next round or match. Popular Mechanics Editors, Popular Mechanics, 25 July 2021 Under the steady stream of water, our strands curl back up and rehydrate after days of styling, retwisting, and slicking back. Sydney Clarke,, 25 June 2021 Remove the stems and seeds from the ancho and guajillo chiles, place them in a bowl, cover with hot water and rehydrate for 15 minutes or so. Leslie Brenner, Dallas News, 4 June 2021 Was down yesterday trying to rehydrate, obviously the body wasn’t in a good place, unavailable. Houston Mitchell Assistant Sports Editor, Los Angeles Times, 28 Apr. 2021 These are mixed with different vitamins and packaged in small bullion-sized cubes that are dropped into water to rehydrate, thus creating a healthy drink. Hudson Lindenberger, Forbes, 27 Apr. 2021 Your skin will be dry from all the exfoliation, so rehydrate it with an unscented lotion. Megan Gustashaw, Glamour, 20 Apr. 2021 However, Nuun isn’t alone in its quest to rehydrate America. Chris Furnari, Forbes, 6 Apr. 2021 To rehydrate the skin barrier, try GH Seal star Olay Regenerist Micro-Sculpting Cream, which increased skin's moisture content by 50% over 24 hours in GH Beauty Lab testing. April Franzino, Good Housekeeping, 15 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rehydrate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of rehydrate

1945, in the meaning defined above

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Time Traveler for rehydrate

Time Traveler

The first known use of rehydrate was in 1945

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Last Updated

30 Jul 2021

Cite this Entry

“Rehydrate.” Dictionary, Merriam-Webster, Accessed 3 Aug. 2021.

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More Definitions for rehydrate


transitive verb
re·​hy·​drate | \ (ˈ)rē-ˈhī-ˌdrāt How to pronounce rehydrate (audio) \
rehydrated; rehydrating

Medical Definition of rehydrate

: to restore fluid to (something dehydrated) especially : to restore body fluid lost in dehydration to rehydrate a patient

Other Words from rehydrate

rehydration \ ˌrē-​ˌhī-​ˈdrā-​shən How to pronounce rehydrate (audio) \ noun

More from Merriam-Webster on rehydrate

Thesaurus: All synonyms and antonyms for rehydrate


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